Here is a quick description of the useful workflow:

• In a large assembly you may have some hidden bodies that are hard to find in the tree that you want to show.
• Run the addin
• You will see the new icon/Dropdown menu in the lower navigation bar on your screen
• Select: Show Hidden Bodies
• Now all the previously hidden bodies will be displayed.
• Hide the body you wanted to show originally
• Select: Show Hidden Bodies
• You now have the previous state with the desired bodies shown

Install:

The installer that ran when you downloaded this app/plug-in from Autodesk App Store has already installed the app/plug-in.

OR, simply double-click the MSI to install the app.

Uninstall:

You can unload the add-in without uninstalling it by clicking the "Stop" button when the add-in is selected in the list box on the "Add-Ins" tab of the "Scripts and Add-Ins" dialog.

Unchecking "Run on Startup" causes the add-in not to be loaded in future sessions of Autodesk® Fusion 360™.

To uninstall this plug-in, exit the Autodesk product if you are currently running it, simply rerun the installer, and select the "Uninstall" button.

OR, you can uninstall it from 'Control Panel\Programs\Programs and Features' (Windows 7/8/8.1), just as you would uninstall any other application from your system.